US11448181B2 - Method and apparatus of extracting energy from water waves to generate electric power - Google Patents

Method and apparatus of extracting energy from water waves to generate electric power Download PDF

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US11448181B2
US11448181B2 US16/633,193 US201816633193A US11448181B2 US 11448181 B2 US11448181 B2 US 11448181B2 US 201816633193 A US201816633193 A US 201816633193A US 11448181 B2 US11448181 B2 US 11448181B2
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hydraulic
parallel sided
elongated
channel
sided channel
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US20210156355A1 (en
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Misheck Harris Kumwenda
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/005—Installations wherein the liquid circulates in a closed loop ; Alleged perpetua mobilia of this or similar kind
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/22—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the flow of water resulting from wave movements to drive a motor or turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1805—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
    • F03B13/181—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation
    • F03B13/1815—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation with an up-and-down movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/406—Transmission of power through hydraulic systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention relates to a method and apparatus, enabling the extraction of energy from water waves in large open water bodies to generate electric power.
  • the apparatus consists of a floater vessel which is mechanically connected to pump fluid by a hydraulic cylinder as the floater oscillates up and down due to wave action.
  • the fluid pumped by the hydraulic cylinder drives a hydraulic motor or impulse turbine which is coupled to and drives electric generators to produce electric power.
  • a hydraulic fluid reservoir is provided to supply and receive circulated fluid in the system.
  • a hydraulic accumulator is connected in the system to even out output hydraulic pressure fluctuations.
  • a wave power converter has been developed with multiple float actuator power take off system where the floats are retractable during heavy sea storms, the whole power take off structure still remains vulnerable to battering by strong sea storms.
  • This present invention addresses power take off efficiency and all sea hazard challenges. It offers a simple, affordable and very responsive design.
  • the purpose of the method and apparatus accordant with the present invention is to take the sea wave energy extraction process away from the open sea (off-shore) and bring it onto land (on-shore) adjacent to the sea, by making use of canals or tunnels.
  • the purpose of the method and apparatus accordant with the present invention is to maximize wave energy extraction by looping the wave movement in a canal or tunnel back to the power-take-off apparatus in a continuous cycle.
  • the purpose of the method and apparatus accordant with the present invention is to maximize wave energy extraction by limiting wave energy escape vents at power-take-off points.
  • the purpose of the method and apparatus accordant with the present invention is to maximize wave energy extraction by capturing long wave fronts and concentrating them into a narrow canal.
  • the purpose of the method and apparatus accordant with the present invention is to tap a controlled amount of sea wave energy from the sea into the canal when the sea wave activity exceeds tolerable limits.
  • the purpose of the method and apparatus accordant with the present invention is to generate electric power at all times, as long as there is significant wave action in the large open water body.
  • the purpose of the method and apparatus accordant with the present invention is to shield the power-take-off apparatus from destructive sea waves when the sea wave activity exceeds tolerable limits.
  • the purpose of the method and apparatus accordant with the present invention is to provide “dry-dock” maintenance conditions for the power-take-off apparatus during major maintenance periods.
  • the purpose of the method and apparatus accordant with the present invention is to preserve the ecological status quo of marine environment.
  • the purpose of the method and apparatus accordant with the present invention is to keep sea shipping and fishing lanes clear of wave energy converters.
  • the purpose of the method and apparatus accordant with the present invention is to promote the generation and use of abundant environmentally friendly green electric energy from water waves in seas with minimum controversy.
  • the invention relates to a method and apparatus, enabling the extraction of energy from water waves in large open water bodies by utilizing water canals to transport wave energy on less hazardous locations on land to generate electric power.
  • electricity generation from water waves in large open water bodies is achieved through a process of tapping wave energy from the sea by trapping a long wave front and concentrating it and the energy contained therein through a funnel shaped canal and channeling it through a canal where a power take off apparatus is positioned to convert the wave energy into mechanical energy.
  • the mechanical energy is used to pressurize hydraulic fluid by means of hydraulic pumping cylinders.
  • the pressurized fluid connects by hydraulic pipes to turn an impulse turbine or hydraulic motor to turn an electricity generator which generates electricity.
  • the residual wave energy that passes beyond the power take off apparatus is channeled back to the front of the power take off apparatus through a loop-back canal to be further extracted for conversion into electricity. This process is repeated in a continuous cycle to provide maximum exploitation of available water wave energy.
  • the invention also relates to an apparatus for enabling the extraction of energy from water waves in large open water bodies to generate electric power.
  • the apparatus comprises a canal dug on land to connect with the large open water body and leading away from it, a control-gate, a buoyant vessel, a power take off apparatus, two way pumping hydraulic cylinders, hydraulic piping, a large mounting frame assembly for piping and other apparatuses, a hydraulic fluid reservoir, an impulse turbine, an electricity generator.
  • control gate comprises a door or two each being opened or closed using hydraulic actuators with requisite power and controls.
  • control gate comprises a door or two each having an aperture with shutters which can be opened and closed using hydraulic actuators with requisite power and controls.
  • the energy extraction from water waves is maximized by means of constrained wave passage at the power take off apparatus whereby the waves are fully restricted between the two canal walls, the canal floor and the base of the buoyant vessel.
  • the power-take-off apparatus comprises an axle with gear wheels and geared elongated members or an axle with lever arms and linkage members connected to plain elongated members to act as a lever swiveling back and forth pushing and pulling pistons in hydraulic pumping cylinders.
  • the two-way pumping hydraulic cylinders are fitted with hydraulic non-return valves on chambers on both sides of the piston such that the cylinders pressurize in either direction of the pumping stroke.
  • the hydraulic system powers an impulse turbine.
  • the hydraulic system powers a hydraulic motor.
  • FIG. 1 presents a plan view according to one configuration of the elongated channel and a power-take off apparatus accordant with the invention (mountings, support frame and hydraulic piping not shown for purposes of clarity)
  • FIG. 2 presents a plan view of a spiral-circle alternative path configuration of the canal showing positions of multiple power-take-off apparatuses
  • FIG. 3 presents a plan view of a circular alternative path configuration of the canal showing positions of multiple power-take-off apparatuses.
  • FIG. 4 presents a plan view of a figure “8” alternative path configuration of the canal showing positions of multiple power-take-off apparatuses.
  • FIG. 5 presents an exposed pictorial view of two barrier doors showing apertures, shutter and hydraulic actuators accordant with the invention.
  • FIG. 6 presents a plan view of canal at the two barrier door position showing the two barrier doors in open position accordant with the invention.
  • FIG. 7 presents a plan view of canal at the two barrier door position showing the two barrier doors in closed position accordant with the invention
  • FIG. 8 presents a cross-sectional view of canal showing erosion resistant lining of the side walls and floor accordant with the invention.
  • FIG. 9 presents a side view of buoyant vessel and power-take-off apparatus accordant with the invention (Mountings, support frame and hydraulic piping not shown for purposes of clarity)
  • FIG. 10 presents a side view of buoyant vessel and power-take-off apparatus using lever arm member alternative to the gear wheel accordant with the invention (Mountings, support frame and hydraulic piping not shown for purposes of clarity)
  • FIG. 11 presents a pictorial view of the axle with link arms and gear wheels accordant with the invention
  • FIG. 12 presents a pictorial view of the axle with link arms and lever arm members alternative accordant with the invention
  • FIG. 13 presents an assembly sequence of elongated gear toothed member on its elongated guide member and solid bed mounting. The alternative elongated plain member with coupling pin is also shown.
  • FIG. 14 presents a pictorial view of axle and gear wheel showing a mounting sequence on solid axle mounting across the canal with solid bed mountings for elongated guide members.
  • FIG. 15 presents a pictorial view of sectioned profiles of gear toothed elongated members in an assembly sequence with hydraulic pumping cylinder (cut-away showing piston and connecting rod)
  • FIG. 16 presents pictorial view of buoyant vessel (float) with dismounted trailing link aims accordant with the invention.
  • FIG. 17 presents pictorial view of power-take-off apparatus accordant with the invention (suspended in ‘mid-air.’) (Mountings, support frame and hydraulic piping not shown for purposes of clarity)
  • FIG. 18 presents a diagram of hydraulic circuit related to mechanical movements of selected parts to show complete functional operation of the invention.
  • FIG. 19 presents a complete hydraulic circuit accordant with the invention showing the axle and gear wheel related connection and action.
  • FIG. 20 presents a complete hydraulic circuit accordant with the invention showing the alternative axle and lever arm member related connection and action.
  • Electric power generation utilizing a canal that taps water-wave energy from a large open water body in accordance with the present invention is achieved by means of a canal or tunnel (parallel sided channel 2 ) constructed through land and having a ‘V’ shaped mouth (funnel shaped channel 1 ) opening connecting it to the large open water body.
  • the mouth opening is significantly wider than the general width of the canal or tunnel.
  • the ‘V’ shaped wide mouth which traps and concentrates water waves and energy contained therein, narrows progressively from the connection point at the large open water body, to the width of the canal.
  • the depth of the canal from the ‘mouth’ all the way around its entire path, is dug or deepened to a predetermined depth which allows enough volume of water, considering the highest and lowest still-water levels of sea tide and highest and lowest movement of the buoyant vessel 8 , to freely float it in the parallel sided channel 2 .
  • Water from the large open water body is allowed to freely flow to fill the whole funnel shaped channel 1 and parallel sided channel 2 until water levels equalize.
  • barrier doors 9 are positioned. These barrier doors 9 are kept open throughout all normal operations of the power take off apparatus 3 . The barrier doors 9 are closed when the wave action threatens to destroy the power take off apparatus 3 .
  • apertures 39 with sliding flat plate shutters 40 are built into the gate. Under gradual control, the sliding flat plate shutters 40 are sufficiently opened to maximize wave energy passing into the parallel sided channel 2 without threatening the destruction of the power take off apparatus. In this and normal operation, the energy contained in the waves is channeled through the parallel sided channel 2 to arrive at a position along and within the canal where a buoyant vessel 8 is set.
  • the wave action in conjunction with the pull of earth's gravity, then causes the buoyant vessel 8 to move up and down.
  • the up and down movement of the buoyant vessel 8 is mechanically linked to the power take off apparatus 3 which in turn translates the motion to turn large gear wheels 12 , on an axle 10 mounted across the parallel sided channel 2 , which pushes and pulls on pistons 34 in two-way pumping hydraulic cylinders 7 by means of gear toothed elongated member 13 .
  • the piston 34 movement pressurizes hydraulic fluid in the two way pumping hydraulic cylinders 7 which then drives an impulse turbine 5 which turns an electricity generator 6 .
  • FIGS. 1, 9, 17 and 18 show one configuration as an example where the apparatus accordant with the invention comprises a single loop parallel sided channel 2 , a funnel shaped channel 1 connected to the large open water body, two barrier doors 9 with apertures 39 with flat plate shutters 40 as further detailed in FIG. 5 , a buoyant vessel 8 as further detailed in FIG. 16 , two elongated trailing link arms 17 as further detailed in FIG. 16 , an axle 10 with large gear wheels 12 as further detailed in FIG.
  • gear toothed elongated members 13 gear toothed elongated members 13 , elongated guide members 18 for gear toothed elongated member 13 , solid bed mountings 20 for elongated guide members, hydraulic fluid filter 42 , hydraulic fluid supply reservoir 23 , two-way pumping hydraulic cylinders 7 as further detailed in FIG. 15 , buttressed mountings 19 for two-way pumping hydraulic cylinders 7 , hydraulic non-return valves 16 as further detailed in FIG.
  • pressurizable hydraulic storage vessels 15 pressurizable hydraulic storage vessels 15 , an impulse turbine 5 , an electricity generator 6 , a voltage step-up transformer 27 with associated generator output control apparatus 28 linked to fluid flow governing sensors and controls 29 at the impulse turbine 5 , a hydraulic drain pump 30 , a firm frame structure to mount hydraulic conduits and other modules, requisite fasteners and bearings.
  • the canal is constructed such that the funnel shaped channel 1 has predetermined curved boundary walls 24 for efficient concentration of wave energy into the parallel sided channel 2 .
  • the walls and floors of the parallel sided channel 2 are lined with erosion-resistant materials 33 .
  • Barrier doors 9 are constructed across the parallel sided channel 2 to shut out or let wave action into the parallel sided channel 2 .
  • the barrier doors 9 have in-built apertures 39 covered by a controllable sliding flat plate shutter 40 to allow a controlled amount of wave power to travel through the parallel sided channel 2 when the barrier doors 9 are fully shut, when sea wave activity in the large open water body exceeds tolerable limits.
  • the barrier doors 9 when shut, in conjunction with a hydraulic drain pump 30 that is set to pump water from the parallel sided channel 2 into the large open water body, serve as means to facilitate dry-dock maintenance on power take off apparatus 3 .
  • a buoyant vessel 8 forming part of power-take-off apparatus 3 to convert wave energy into machine motion energy, is situated to float in the parallel sided channel 2 .
  • a loop-back channel 4 is constructed continuing the parallel sided channel 2 at the back end of the buoyant vessel 8 to reroute residual wave energy back to the front end of the buoyant vessel 8 .
  • the front end is the end of the buoyant vessel 8 facing the oncoming wave and the back end is the end where the outgoing wave exits past the buoyant vessel 8 within the parallel sided channel 2 .
  • the buoyant vessel 8 has two upright pillars 14 vertically and solidly connected to it.
  • the upright pillars 14 are positioned in such a way that when the buoyant vessel 8 is in the parallel sided channel 2 , they are each close to different banks of the parallel sided channel 2 .
  • the buoyant vessel 8 is connected and anchored by the two upright pillars 14 which are hinged at or near the top to a pair of elongated trailing link arms 17 who's other ends are hinged to two fixed but different positions on an elongated anchor pin 43 , aligned directly above the axis of the axle 10 .
  • the elongated axle arm member 11 of axle 10 is hinged so that the buoyant vessel 8 can float up and down vertically and push and pull the elongated axle arm members 11 that are solidly attached to an axle 10 mounted above and across the parallel sided channel 2 .
  • the length between end to end pivot points of the top elongated trailing link arms 17 being equal to the arc radius at pivot points of the elongated axle arm members 11 on the axle 10 .
  • Each end of the axle 10 is mounted, in a rotatable manner on a solid axle mounting 25 , one on each and opposite bank of the parallel sided channel 2 .
  • Each end of the axle 10 has a large gear wheel 12 with gear teeth on its circumference.
  • Four gear toothed elongated members 13 with a predetermined cross section 37 are mounted to horizontally mesh their gear teeth with the gear teeth of the large gear wheels 12 of the axle 10 .
  • For each large gear wheel 12 two gear toothed elongated members 13 mesh with it, one on the top side and the other on the bottom side.
  • the length of the geared portion of the elongated member 13 is about one half of the pitch circle circumference of the large gear wheel 12 on the axle 10 .
  • Each gear toothed elongated member 13 is supported on an elongated guide member 18 mounted on a solid bed mounting 20 that allows it to slide longitudinally and in the same plane as the large gear wheel 12 , whilst restricting it from buckling when the elongated member with gear teeth 13 is under longitudinal compression.
  • the restriction from buckling is achieved by elongated guide members 18 .
  • the four gear toothed elongated members 13 are each, at the two ends, connected to connecting rods 26 of pistons 34 of two-way pumping hydraulic cylinders 7 .
  • the two-way pumping hydraulic cylinders 7 are horizontally mounted on the buttressed mountings 19 .
  • Each cylinder has the chambers, on both sides of the piston 34 , set to pump fluid.
  • Each chamber has an inlet conduit for incoming fluid and an output conduit for pressurized fluid.
  • Hydraulic non-return valves 16 in the inlet and outlet conduits let in and let out hydraulic fluid respectively from the hydraulic fluid supply reservoir 23 and to a pressurizable hydraulic storage vessel 15 and an impulse turbine 5 .
  • the pressurizable hydraulic storage vessel 15 is set to store predetermined hydraulic pressure which is released into the system when the hydraulic pressure drops below a predetermined system hydraulic pressure.
  • the hydraulic conduits from the two-way pumping hydraulic cylinders 7 connect to an impulse turbine 5 apparatus with fluid flow governing sensors and controls 29 for the pressurized hydraulic fluid.
  • the fluid expelled at the impulse turbine 5 is rerouted by conduits back into the hydraulic fluid supply reservoir 23 through a hydraulic fluid filter 42 .
  • the impulse turbine 5 is coupled to turn an electricity generator 6 .
  • the electricity generator 6 output power is regulated through generator output control apparatus 28 , and voltage stepped up for transmission to a power grid through a voltage step-up transformer 27 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
US16/633,193 2017-07-28 2018-07-30 Method and apparatus of extracting energy from water waves to generate electric power Active 2038-11-21 US11448181B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZM13/2017 2017-07-28
ZMZM13/2017 2017-07-28
ZM132017 2017-07-28
PCT/IB2018/001514 WO2019064080A2 (fr) 2017-07-28 2018-07-30 Procédé et appareil d'extraction d'énergie à partir d'ondes d'eau pour produire de l'énergie électrique

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US20210156355A1 US20210156355A1 (en) 2021-05-27
US11448181B2 true US11448181B2 (en) 2022-09-20

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AU (1) AU2018342752B2 (fr)
WO (1) WO2019064080A2 (fr)
ZA (1) ZA202000369B (fr)

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TWI808377B (zh) * 2021-02-04 2023-07-11 張鴻森 潮汐發電裝置與用於容置發電設備的容器組件

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US4224527A (en) * 1978-07-06 1980-09-23 Thompson Jack E Fluid flow intensifier for tide, current or wind generator
US5420463A (en) * 1990-01-08 1995-05-30 Agostino; Michael Fluid driven power system
US7448210B1 (en) * 2005-10-24 2008-11-11 Andalia Roger R Wave powered system for generating energy
US7579704B2 (en) 2003-10-14 2009-08-25 Wave Star Energy Aps Wave power apparatus having a float and means for locking the float in a position above the ocean surface
US7956478B2 (en) 2005-04-14 2011-06-07 Wave Star Energy Aps Installation comprising a wave power apparatus and a support structure therefor
US20110289913A1 (en) * 2010-05-28 2011-12-01 Welch Jr Kenneth W Wave energy transfer system
WO2012066521A2 (fr) 2010-11-19 2012-05-24 Merci Express Di Dicembrino Dario Dispositif de conversion d'une énergie produite par le mouvement des vagues
WO2014162096A1 (fr) 2013-04-03 2014-10-09 Waves Ruiz Centrale houlomotrice équipée d'un système d'équilibrage des efforts
US20150210362A1 (en) 2012-06-29 2015-07-30 José Antonio RUIZ DIEZ Semi-submersible platform with a stabilizing fin, and offshore wave power plant incorporating such a platform
US20160186714A1 (en) * 2014-12-29 2016-06-30 Gerald A. Filipek Water powered electrical generator with outlet aeration feature for marine life and including minimal water drop with no head pressure
US20190136822A1 (en) * 2016-06-01 2019-05-09 Robert L. Huebner Pontoon System for Producing Useful Work

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GB1560499A (en) 1976-11-20 1980-02-06 Hook C R Apparatus for extracting energy from waves
US4224527A (en) * 1978-07-06 1980-09-23 Thompson Jack E Fluid flow intensifier for tide, current or wind generator
US5420463A (en) * 1990-01-08 1995-05-30 Agostino; Michael Fluid driven power system
US7579704B2 (en) 2003-10-14 2009-08-25 Wave Star Energy Aps Wave power apparatus having a float and means for locking the float in a position above the ocean surface
US7694513B2 (en) 2003-10-14 2010-04-13 Wave Star Energy Aps Wave power apparatus comprising a plurality of arms arranged to pivot with a mutual phase shift
US7956478B2 (en) 2005-04-14 2011-06-07 Wave Star Energy Aps Installation comprising a wave power apparatus and a support structure therefor
US7448210B1 (en) * 2005-10-24 2008-11-11 Andalia Roger R Wave powered system for generating energy
US20110289913A1 (en) * 2010-05-28 2011-12-01 Welch Jr Kenneth W Wave energy transfer system
WO2012066521A2 (fr) 2010-11-19 2012-05-24 Merci Express Di Dicembrino Dario Dispositif de conversion d'une énergie produite par le mouvement des vagues
US20150210362A1 (en) 2012-06-29 2015-07-30 José Antonio RUIZ DIEZ Semi-submersible platform with a stabilizing fin, and offshore wave power plant incorporating such a platform
WO2014162096A1 (fr) 2013-04-03 2014-10-09 Waves Ruiz Centrale houlomotrice équipée d'un système d'équilibrage des efforts
US20160186714A1 (en) * 2014-12-29 2016-06-30 Gerald A. Filipek Water powered electrical generator with outlet aeration feature for marine life and including minimal water drop with no head pressure
US20190136822A1 (en) * 2016-06-01 2019-05-09 Robert L. Huebner Pontoon System for Producing Useful Work

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AU2018342752B2 (en) 2023-10-12
AU2018342752A1 (en) 2020-03-19
US20210156355A1 (en) 2021-05-27
WO2019064080A2 (fr) 2019-04-04
WO2019064080A3 (fr) 2019-05-09

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